Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"van duc tran slippers" » "van duc tan slippers", "van duc toan slippers", "van duc tren slippers", "van duy tran slippers", "van du tran slippers", "tran duc tran slippers", "van duc tran slippery", "van duc tran grippers"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("van duc tran slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("van duc tran slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( van duc tran slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van duc tran slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.